X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_net%2Frte_ip.h;h=9b1944b0ff44ad8a13bb38d543b6d8979f04acac;hb=24ac604ef7469eb5773c2504b313dd00257f8df3;hp=f2a8904a2a137db4aeab539afb38328d25870cf6;hpb=68248ad1b9a8a5e84611346b699dd5d4f1bbe37d;p=dpdk.git diff --git a/lib/librte_net/rte_ip.h b/lib/librte_net/rte_ip.h index f2a8904a2a..9b1944b0ff 100644 --- a/lib/librte_net/rte_ip.h +++ b/lib/librte_net/rte_ip.h @@ -28,7 +28,7 @@ extern "C" { /** * IPv4 Header */ -struct ipv4_hdr { +struct rte_ipv4_hdr { uint8_t version_ihl; /**< version and header length */ uint8_t type_of_service; /**< type of service */ uint16_t total_length; /**< length of packet */ @@ -42,52 +42,55 @@ struct ipv4_hdr { } __attribute__((__packed__)); /** Create IPv4 address */ -#define IPv4(a,b,c,d) ((uint32_t)(((a) & 0xff) << 24) | \ +#define RTE_IPv4(a, b, c, d) ((uint32_t)(((a) & 0xff) << 24) | \ (((b) & 0xff) << 16) | \ (((c) & 0xff) << 8) | \ ((d) & 0xff)) /** Maximal IPv4 packet length (including a header) */ -#define IPV4_MAX_PKT_LEN 65535 +#define RTE_IPV4_MAX_PKT_LEN 65535 /** Internet header length mask for version_ihl field */ -#define IPV4_HDR_IHL_MASK (0x0f) +#define RTE_IPV4_HDR_IHL_MASK (0x0f) /** * Internet header length field multiplier (IHL field specifies overall header * length in number of 4-byte words) */ -#define IPV4_IHL_MULTIPLIER (4) +#define RTE_IPV4_IHL_MULTIPLIER (4) /* Fragment Offset * Flags. */ -#define IPV4_HDR_DF_SHIFT 14 -#define IPV4_HDR_MF_SHIFT 13 -#define IPV4_HDR_FO_SHIFT 3 +#define RTE_IPV4_HDR_DF_SHIFT 14 +#define RTE_IPV4_HDR_MF_SHIFT 13 +#define RTE_IPV4_HDR_FO_SHIFT 3 -#define IPV4_HDR_DF_FLAG (1 << IPV4_HDR_DF_SHIFT) -#define IPV4_HDR_MF_FLAG (1 << IPV4_HDR_MF_SHIFT) +#define RTE_IPV4_HDR_DF_FLAG (1 << RTE_IPV4_HDR_DF_SHIFT) +#define RTE_IPV4_HDR_MF_FLAG (1 << RTE_IPV4_HDR_MF_SHIFT) -#define IPV4_HDR_OFFSET_MASK ((1 << IPV4_HDR_MF_SHIFT) - 1) +#define RTE_IPV4_HDR_OFFSET_MASK ((1 << RTE_IPV4_HDR_MF_SHIFT) - 1) -#define IPV4_HDR_OFFSET_UNITS 8 +#define RTE_IPV4_HDR_OFFSET_UNITS 8 /* * IPv4 address types */ -#define IPV4_ANY ((uint32_t)0x00000000) /**< 0.0.0.0 */ -#define IPV4_LOOPBACK ((uint32_t)0x7f000001) /**< 127.0.0.1 */ -#define IPV4_BROADCAST ((uint32_t)0xe0000000) /**< 224.0.0.0 */ -#define IPV4_ALLHOSTS_GROUP ((uint32_t)0xe0000001) /**< 224.0.0.1 */ -#define IPV4_ALLRTRS_GROUP ((uint32_t)0xe0000002) /**< 224.0.0.2 */ -#define IPV4_MAX_LOCAL_GROUP ((uint32_t)0xe00000ff) /**< 224.0.0.255 */ +#define RTE_IPV4_ANY ((uint32_t)0x00000000) /**< 0.0.0.0 */ +#define RTE_IPV4_LOOPBACK ((uint32_t)0x7f000001) /**< 127.0.0.1 */ +#define RTE_IPV4_BROADCAST ((uint32_t)0xe0000000) /**< 224.0.0.0 */ +#define RTE_IPV4_ALLHOSTS_GROUP ((uint32_t)0xe0000001) /**< 224.0.0.1 */ +#define RTE_IPV4_ALLRTRS_GROUP ((uint32_t)0xe0000002) /**< 224.0.0.2 */ +#define RTE_IPV4_MAX_LOCAL_GROUP ((uint32_t)0xe00000ff) /**< 224.0.0.255 */ /* * IPv4 Multicast-related macros */ -#define IPV4_MIN_MCAST IPv4(224, 0, 0, 0) /**< Minimal IPv4-multicast address */ -#define IPV4_MAX_MCAST IPv4(239, 255, 255, 255) /**< Maximum IPv4 multicast address */ +#define RTE_IPV4_MIN_MCAST \ + RTE_IPv4(224, 0, 0, 0) /**< Minimal IPv4-multicast address */ +#define RTE_IPV4_MAX_MCAST \ + RTE_IPv4(239, 255, 255, 255) /**< Maximum IPv4 multicast address */ -#define IS_IPV4_MCAST(x) \ - ((x) >= IPV4_MIN_MCAST && (x) <= IPV4_MAX_MCAST) /**< check if IPv4 address is multicast */ +#define RTE_IS_IPV4_MCAST(x) \ + ((x) >= RTE_IPV4_MIN_MCAST && (x) <= RTE_IPV4_MAX_MCAST) + /**< check if IPv4 address is multicast */ /** * @internal Calculate a sum of all words in the buffer. @@ -249,10 +252,10 @@ rte_raw_cksum_mbuf(const struct rte_mbuf *m, uint32_t off, uint32_t len, * The complemented checksum to set in the IP packet. */ static inline uint16_t -rte_ipv4_cksum(const struct ipv4_hdr *ipv4_hdr) +rte_ipv4_cksum(const struct rte_ipv4_hdr *ipv4_hdr) { uint16_t cksum; - cksum = rte_raw_cksum(ipv4_hdr, sizeof(struct ipv4_hdr)); + cksum = rte_raw_cksum(ipv4_hdr, sizeof(struct rte_ipv4_hdr)); return (cksum == 0xffff) ? cksum : (uint16_t)~cksum; } @@ -275,7 +278,7 @@ rte_ipv4_cksum(const struct ipv4_hdr *ipv4_hdr) * The non-complemented checksum to set in the L4 header. */ static inline uint16_t -rte_ipv4_phdr_cksum(const struct ipv4_hdr *ipv4_hdr, uint64_t ol_flags) +rte_ipv4_phdr_cksum(const struct rte_ipv4_hdr *ipv4_hdr, uint64_t ol_flags) { struct ipv4_psd_header { uint32_t src_addr; /* IP address of source host. */ @@ -294,7 +297,7 @@ rte_ipv4_phdr_cksum(const struct ipv4_hdr *ipv4_hdr, uint64_t ol_flags) } else { psd_hdr.len = rte_cpu_to_be_16( (uint16_t)(rte_be_to_cpu_16(ipv4_hdr->total_length) - - sizeof(struct ipv4_hdr))); + - sizeof(struct rte_ipv4_hdr))); } return rte_raw_cksum(&psd_hdr, sizeof(psd_hdr)); } @@ -310,16 +313,20 @@ rte_ipv4_phdr_cksum(const struct ipv4_hdr *ipv4_hdr, uint64_t ol_flags) * @param l4_hdr * The pointer to the beginning of the L4 header. * @return - * The complemented checksum to set in the IP packet. + * The complemented checksum to set in the IP packet + * or 0 on error */ static inline uint16_t -rte_ipv4_udptcp_cksum(const struct ipv4_hdr *ipv4_hdr, const void *l4_hdr) +rte_ipv4_udptcp_cksum(const struct rte_ipv4_hdr *ipv4_hdr, const void *l4_hdr) { uint32_t cksum; - uint32_t l4_len; + uint32_t l3_len, l4_len; + + l3_len = rte_be_to_cpu_16(ipv4_hdr->total_length); + if (l3_len < sizeof(struct rte_ipv4_hdr)) + return 0; - l4_len = (uint32_t)(rte_be_to_cpu_16(ipv4_hdr->total_length) - - sizeof(struct ipv4_hdr)); + l4_len = l3_len - sizeof(struct rte_ipv4_hdr); cksum = rte_raw_cksum(l4_hdr, l4_len); cksum += rte_ipv4_phdr_cksum(ipv4_hdr, 0); @@ -335,7 +342,7 @@ rte_ipv4_udptcp_cksum(const struct ipv4_hdr *ipv4_hdr, const void *l4_hdr) /** * IPv6 Header */ -struct ipv6_hdr { +struct rte_ipv6_hdr { uint32_t vtc_flow; /**< IP version, traffic class & flow label. */ uint16_t payload_len; /**< IP packet length - includes sizeof(ip_header). */ uint8_t proto; /**< Protocol, next header. */ @@ -345,10 +352,10 @@ struct ipv6_hdr { } __attribute__((__packed__)); /* IPv6 vtc_flow: IPv / TC / flow_label */ -#define IPV6_HDR_FL_SHIFT 0 -#define IPV6_HDR_TC_SHIFT 20 -#define IPV6_HDR_FL_MASK ((1u << IPV6_HDR_TC_SHIFT) - 1) -#define IPV6_HDR_TC_MASK (0xf << IPV6_HDR_TC_SHIFT) +#define RTE_IPV6_HDR_FL_SHIFT 0 +#define RTE_IPV6_HDR_TC_SHIFT 20 +#define RTE_IPV6_HDR_FL_MASK ((1u << RTE_IPV6_HDR_TC_SHIFT) - 1) +#define RTE_IPV6_HDR_TC_MASK (0xf << RTE_IPV6_HDR_TC_SHIFT) /** * Process the pseudo-header checksum of an IPv6 header. @@ -367,7 +374,7 @@ struct ipv6_hdr { * The non-complemented checksum to set in the L4 header. */ static inline uint16_t -rte_ipv6_phdr_cksum(const struct ipv6_hdr *ipv6_hdr, uint64_t ol_flags) +rte_ipv6_phdr_cksum(const struct rte_ipv6_hdr *ipv6_hdr, uint64_t ol_flags) { uint32_t sum; struct { @@ -403,7 +410,7 @@ rte_ipv6_phdr_cksum(const struct ipv6_hdr *ipv6_hdr, uint64_t ol_flags) * The complemented checksum to set in the IP packet. */ static inline uint16_t -rte_ipv6_udptcp_cksum(const struct ipv6_hdr *ipv6_hdr, const void *l4_hdr) +rte_ipv6_udptcp_cksum(const struct rte_ipv6_hdr *ipv6_hdr, const void *l4_hdr) { uint32_t cksum; uint32_t l4_len;